Add LINEAR_HDR so that the linear scRGB colorspace will be HDR

ui/gfx/color_space.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/color_space.h"
 
 #include <map>
 
 #include "base/lazy_instance.h"
 #include "base/synchronization/lock.h"
@@ skipping 70 matching lines @@
 // static
 ColorSpace ColorSpace::CreateSRGB() {
   ColorSpace result(PrimaryID::BT709, TransferID::IEC61966_2_1, MatrixID::RGB,
                     RangeID::FULL);
   result.sk_color_space_ = SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named);
   return result;
 }
 
 // static
 ColorSpace ColorSpace::CreateSCRGBLinear() {
-  return ColorSpace(PrimaryID::BT709, TransferID::LINEAR, MatrixID::RGB,
+  return ColorSpace(PrimaryID::BT709, TransferID::LINEAR_HDR, MatrixID::RGB,
                     RangeID::FULL);
 }
 
 // Static
 ColorSpace ColorSpace::CreateXYZD50() {
   return ColorSpace(PrimaryID::XYZ_D50, TransferID::LINEAR, MatrixID::RGB,
                     RangeID::FULL);
 }
 
 // static
@@ skipping 20 matching lines @@
     return false;
   if (primaries_ == PrimaryID::CUSTOM &&
       memcmp(custom_primary_matrix_, other.custom_primary_matrix_,
              sizeof(custom_primary_matrix_)))
     return false;
   return true;
 }
 
 bool ColorSpace::IsHDR() const {
   return transfer_ == TransferID::SMPTEST2084 ||
-         transfer_ == TransferID::ARIB_STD_B67;
+         transfer_ == TransferID::ARIB_STD_B67 ||
+         transfer_ == TransferID::LINEAR_HDR;
 }
 
 bool ColorSpace::operator!=(const ColorSpace& other) const {
   return !(*this == other);
 }
 
 bool ColorSpace::operator<(const ColorSpace& other) const {
   if (primaries_ < other.primaries_)
     return true;
   if (primaries_ > other.primaries_)
@@ skipping 31 matching lines @@
           SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named).get()))
     return gfx::ColorSpace::CreateSRGB();
 
   // TODO(crbug.com/634102): Add conversion to gfx::ColorSpace for
   // non-ICC-profile based color spaces.
   ICCProfile icc_profile = ICCProfile::FromSkColorSpace(sk_color_space);
   return icc_profile.GetColorSpace();
 }
 
 }  // namespace gfx